hello.when turning my rs zvh over i only have compression in number four cylinder.the car has been sat for about 4 years and i bought it as a non runner to restore to full health.ive been told this could be stuck or knackered but someone says that the hydraulic lifters could be the problem.the car does fire up after about 2 mins of turning over!!!!!any hints or tips would be gratefully received!!!!

 

That is strange what did you get for compression in number 4 cylinder then?Take the plugs out of 1 to 3 cylinders and put a teaspoon of oil down each hole.It will or should make a seal round the rings to test and go from there

 

So wot was you told when you got it as you have said it was a non runner when you got it ?????

O plus this post is in the rong place mate

 

ok i will try that.when i bought the car i was told that it maybe siezed hydraulic lifters.i am restoring the car so the engine will be coming out anyway but i just wanted to know what it could be.

 

i dont understand why my post is in the wrong place?i am renovating and restoring my rs?

 

the compression was 150psi on number4,nothing on the other three!

 

It could be that some of the valves are stuck partly open.

 

Think what he means is the post looks like a question for the technical q&a section although if it is a project thread this is the place for it just add some pics so we can all look at what you've got and what you're doing

 

ive got you!i"ll get some photos up asap.